How to read it
Berlin and San Francisco, side by side
Each row is one city's day, half an hour to a square, lined up by the hours along the bottom.
- 1Filled: at the desk, 9:00 to 18:00 where that city is.
- 2Grey: up early, up late, or the weekend.
- 3Outline: asleep.
- 4Red band: your slot. Read straight down to see the same moment in every city.
- 5A marks the best time for everyone; B, when there is one, the next best.
The red band is the best time to call on Wed, 21 Oct 2026: 16:00–17:00 in Berlin, which is 07:00–08:00 in San Francisco.
Through the year
How the gap between Berlin and San Francisco moves
San Francisco is 9h behind Berlin today. Daylight saving moves it:
- San Francisco 9h behind Berlin
- San Francisco 8h behind Berlin
- Sun, 25 Oct 2026 Berlin's clocks go back an hour. San Francisco is then 8h behind Berlin.
- Sun, 1 Nov 2026 San Francisco's clocks go back an hour. San Francisco is then 9h behind Berlin.
- Sun, 14 Mar 2027 San Francisco's clocks go forward an hour. San Francisco is then 8h behind Berlin.
- Sun, 28 Mar 2027 Berlin's clocks go forward an hour. San Francisco is then 9h behind Berlin.
Hour by hour
Berlin to San Francisco time, hour by hour
On a working day (Wed, 21 Oct 2026), with working hours of 9:00 to 18:00 in both cities.
- Berlin starts work 09:00 00:00 in San Francisco Asleep
- San Francisco starts work 09:00 18:00 in Berlin Late
- Berlin finishes work 18:00 09:00 in San Francisco At desk
- San Francisco finishes work 18:00 03:00 Wed in Berlin Asleep
Show all 24 hours
| Berlin | San Francisco |
|---|---|
| 00:00 Asleep | 15:00 Tue At desk |
| 01:00 Asleep | 16:00 Tue At desk |
| 02:00 Asleep | 17:00 Tue At desk |
| 03:00 Asleep | 18:00 Tue Late |
| 04:00 Asleep | 19:00 Tue Late |
| 05:00 Asleep | 20:00 Tue Late |
| 06:00 Asleep | 21:00 Tue Late |
| 07:00 Early | 22:00 Tue Asleep |
| 08:00 Early | 23:00 Tue Asleep |
| 09:00 At desk | 00:00 Asleep |
| 10:00 At desk | 01:00 Asleep |
| 11:00 At desk | 02:00 Asleep |
| 12:00 At desk | 03:00 Asleep |
| 13:00 At desk | 04:00 Asleep |
| 14:00 At desk | 05:00 Asleep |
| 15:00 At desk | 06:00 Asleep |
| 16:00 At desk | 07:00 Early |
| 17:00 At desk | 08:00 Early |
| 18:00 Late | 09:00 At desk |
| 19:00 Late | 10:00 At desk |
| 20:00 Late | 11:00 At desk |
| 21:00 Late | 12:00 At desk |
| 22:00 Asleep | 13:00 At desk |
| 23:00 Asleep | 14:00 At desk |
Questions
Questions people ask
What is the time difference between Berlin and San Francisco?
San Francisco is 9h behind Berlin (as of Wed, 21 Oct 2026). That changes on Sun, 25 Oct 2026, when Berlin's clocks go back: then San Francisco is 8h behind Berlin.
What is the best time for a call between Berlin and San Francisco?
On a working day, the best time for a call is 16:00–17:00 in Berlin (07:00–08:00 in San Francisco) until 24 Oct 2026 and from 1 Nov 2026 to 13 Mar 2027 and from 28 Mar 2027, and 17:00–18:00 in Berlin (09:00–10:00 in San Francisco) from 25 Oct 2026 to 31 Oct 2026 and from 14 Mar 2027 to 27 Mar 2027.
Does Berlin change its clocks?
Yes. Berlin moves its clocks back an hour on Sun, 25 Oct 2026, and forward an hour on Sun, 28 Mar 2027.
Does San Francisco change its clocks?
Yes. San Francisco moves its clocks back an hour on Sun, 1 Nov 2026, and forward an hour on Sun, 14 Mar 2027.
More city pairs
Compare more cities
Berlin and…
- Berlin and Mumbai
- Berlin and Delhi
- Berlin and Bengaluru
- Berlin and Dubai
- Berlin and Abu Dhabi
- Berlin and Riyadh
- Berlin and Doha
- Berlin and Singapore
- Berlin and Hong Kong
- Berlin and Tokyo
- Berlin and Sydney
- Berlin and London
- Berlin and Paris
- Berlin and Amsterdam
- Berlin and New York
- Berlin and Toronto
- Berlin and Chicago
- Berlin and Los Angeles
San Francisco and…
- San Francisco and Mumbai
- San Francisco and Delhi
- San Francisco and Bengaluru
- San Francisco and Dubai
- San Francisco and Abu Dhabi
- San Francisco and Riyadh
- San Francisco and Doha
- San Francisco and Singapore
- San Francisco and Hong Kong
- San Francisco and Tokyo
- San Francisco and Sydney
- San Francisco and London
- San Francisco and Paris
- San Francisco and Amsterdam
- San Francisco and New York
- San Francisco and Toronto
- San Francisco and Chicago
- San Francisco and Los Angeles
From the team behind 10:10
Running an event across time zones?
C4E has spent twenty years running conferences, dealer meets and offsites in more than 40 countries, with clients, speakers and crews in different time zones. 10:10 is one of the tools we built for our own shows. It is free, with no account and nothing upsold.